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[Official] AMD R9 280X / 280 & 270X / 270 Owners Club - Page 915

post #9141 of 9745
Quote:
Originally Posted by JackCY View Post

No. Unless your VRM cooling is awful but then the VRMs would burn instead.

All chips have some limit.
I can run mine up to 1120, on stock voltage but the more I push it over 1070 the more I may encounter some weird behavior/artifact in games. Benchmarking is pointless except Heaven with specific AA to discover the instability. All chips have a wall and no matter how much voltage you feed it it won't clock higher, at least not without sub-zero cooling.
Overall AMD GPUs are one of the worst overclockers compared to how much extra you can milk out of Nvidia and Intel chips. Some are lucky to get up to +10% but that's about it. No wonder AMD GPUs used to have base clock below 1GHz, they simply don't clock high.

You can't compare architectures like that. Also, 290s/390s overclock very well.
post #9142 of 9745
Quote:
Originally Posted by rdr09 View Post

if it happens when watching YT video . . . try disabling Hardware Acceleration (HA). Rightclick video>uncheck HA. Or, go to advance settings of the browser and disable it there.

edit: More info . . .

http://www.overclock.net/t/1265543/the-amd-how-to-thread

Doesn't happen with just watching videos, sometimes just happens in a normal browser, window, or game.
post #9143 of 9745
Quote:
Originally Posted by MiladEd View Post

First, get Sapphire TRIXX software, for voltage control.

Overclocking the card is as easy as turning a bunch of sliders up and down. Start from the default core clock of your card, then go up. with 10 MHz steps. Keep an eye out for temps, and artifacts while gaming. If you see artifacts, bump up the voltages a bit. Keep on this until you reach the thermal limit. For 280X, highest temperature is said to be 85 C, but it's wiser to keep is about 10 C lower than that if you want your card to have longevity. Also, Tahiti cores (280, 280X, 7950, 7970 etc) mostly lose overclocking at temps higher than 70 C, or so I've heard. Turning the Power limit slider up increases power usage, and heat output, but it prevent card form throttling. Keep it lower if you have a smaller PSU or are concerned about temps.

I've a Sapphire R9 280X Dual-X. Mine's not a very good overclcocker, as the highest core clock I've been able to reach was 1100 MHz. Any thing higher, regardless of the voltages, artifacts in GTA V.

Remember, some games may run just fine with a certain OC while others may cause problems. My cards does just fine with 1150 MHz in The Witcher 3, while GTA V, although it is a much less demanding game, artifacts to hell, even at lower clocks.

The default core clock on my 280X is 1020 MHz. OCing does quite help with performance, I've achieved about 6 frames in The Witcher 3 with my 80 MHz OC.

Good luck and happy overclocking.
very useful information there mate thank you! I'll have a go and see what happens just bought a new psu, evga g2 650w because my old one got shorted which was a 750w coolermaster G2 is much better though, currently getting around 60-80 fps in most the games I play but thinking in the near future a o'c might be needed
post #9144 of 9745
Quote:
Originally Posted by Exxlir View Post

very useful information there mate thank you! I'll have a go and see what happens just bought a new psu, evga g2 650w because my old one got shorted which was a 750w coolermaster G2 is much better though, currently getting around 60-80 fps in most the games I play but thinking in the near future a o'c might be needed

Glad to be of help.

Yeah, G2 is a very good product, it's a Tier 1 PSU which means it doesn't get any better than that. 650 W is plenty for a single 280X. Seems like you almost have the same CPU as me too, I've an OC FX-8320 @ 4.5 GHz. I think 650 W would be plenty enough for an OC FX-8350, and 280X. I personally have a High Power Astro GD 850 W PSU, which is enough for dual 280X, but since my mobo's second PCIE slot is rated at 4X, I can't really CF sadly.

Well, good luck again with your OC if you decided to go through with it. Also, feel free to PM me with any more questions you had, I visit the site almost everyday.
 
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post #9145 of 9745
i have a question about the 280x toxic sapphire overclocked

when im running a game on load im pretty sure i hear either the gpu or the cpu ( i know the cpu does make the high pitched noise as it works) making high pitched noise as if its a hard drive arm writing on to metal and its making me very paranoid this is why i replaced the psu recently due to hearing roughly the same noise coming from the gpu power connectors has anyone got any idea if this is a normal high pitched noise as the gpu works ?
post #9146 of 9745
Possibly coil whine
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post #9147 of 9745
Quote:
Originally Posted by diggiddi View Post

Possibly coil whine
i thought so myself then i listened very closely and i dont think it is coil whine hmmmm
post #9148 of 9745
Quote:
Originally Posted by Mercennarius View Post

Doesn't happen with just watching videos, sometimes just happens in a normal browser, window, or game.
yep it happens.. it does it with both my 7870XT and my 270X.
 
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post #9149 of 9745
can any one tell me if its normal when i open the side panel from my tower have the gpu sitting in front of my and only when a game or a high demand of graphics is needed the gpu at the power connectors seems to get very loud with a buzzing noise i have asked this previously and people suggested coil whine but I'm not so sure i think the cards drawing power and some where its faulting and that's why i can hear the buzzing gritty noise i may be completely wrong and just plain paranoid but i just cant sit with the fact its coil whine when i switch off vsync its the same noise and when vsync is switched on its the exact same noise again just low frequency buzzing as if one of the fans has a bit of dust trapped on it but it doesn't i thoroughly checked and made sure it wasn't dust..

i personally would like to know if its normal for such noise or not.

thanks
post #9150 of 9745
Quote:
Originally Posted by Exxlir View Post

can any one tell me if its normal when i open the side panel from my tower have the gpu sitting in front of my and only when a game or a high demand of graphics is needed the gpu at the power connectors seems to get very loud with a buzzing noise i have asked this previously and people suggested coil whine but I'm not so sure i think the cards drawing power and some where its faulting and that's why i can hear the buzzing gritty noise i may be completely wrong and just plain paranoid but i just cant sit with the fact its coil whine when i switch off vsync its the same noise and when vsync is switched on its the exact same noise again just low frequency buzzing as if one of the fans has a bit of dust trapped on it but it doesn't i thoroughly checked and made sure it wasn't dust..

i personally would like to know if its normal for such noise or not.

thanks

If it changes pitch when you enable VSYNC odds are it is coil whine.

For your fan noise suspicions just use your finger to temporarily stop each fan and see if the noise goes away or not.

To further investigate the possibility of coil whine being the culprit you can run something that gives very high frame rates. 3DMark benches like Cloudgate or Sky Diver come to mind. Take a listen to the noise there if it's present. With the high frames it should be a highher pitched noise.

If it is coil whine sometimes altering clocks, voltages, and power settings with an OC utility will change the tone/frequency of the sound or reduce it.

Coil whine is a common enough thing to happen. Sometimes card exhibit none at all under any conditions, other times it only comes out when clocks/volts/pwr settings are changed, or it could only happen under extremely high frame rate scenarios; like a loading screen for a game.

If it can't be remedied you can try to RMA your card if it's stil under warranty.
Edited by Roboyto - 11/8/15 at 1:10pm
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